chore(deps): update dependency rust to v1.81.0

.clippy.toml

@@ -1,4 +1,4 @@
-msrv = "1.80.0"  # MSRV
+msrv = "1.81.0"  # MSRV
 warn-on-all-wildcard-imports = true
 allow-expect-in-tests = true
 allow-unwrap-in-tests = true

.github/workflows/ci.yml

@@ -49,15 +49,15 @@ jobs:
     - name: No-default features
       run: cargo test --workspace --no-default-features
   msrv:
-    name: "Check MSRV: 1.80.0"
+    name: "Check MSRV: 1.81.0"
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.80.0"  # MSRV
+        toolchain: "1.81.0"  # MSRV
     - uses: Swatinem/rust-cache@v2
     - name: Default features
       run: cargo check --workspace --all-targets
@@ -119,7 +119,7 @@ jobs:
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: "1.80.0"  # MSRV
+        toolchain: "1.81.0"  # MSRV
         components: clippy
     - uses: Swatinem/rust-cache@v2
     - name: Install SARIF tools

Cargo.toml

@@ -7,7 +7,7 @@ members = [
 [workspace.package]
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.80.0"  # MSRV
+rust-version = "1.81.0"  # MSRV
 include = [
   "build.rs",
   "src/**/*",

crates/core/src/parser/parser.rs

@@ -765,9 +765,8 @@ pub struct TagTokenIter<'a> {
 impl<'a> Iterator for TagTokenIter<'a> {
     type Item = TagToken<'a>;
     fn next(&mut self) -> Option<Self::Item> {
-        self.iter.next().map(|next| {
+        self.iter.next().inspect(|next| {
             self.position = next.token.as_span().end_pos();
-            next
         })
     }
 }

tests/conformance_ruby/tags/include_tag_test.rs

@@ -152,6 +152,7 @@ fn test_nested_include_with_variable() {
 }
 
 #[derive(Default, Debug, Clone, Copy)]
+#[expect(dead_code)]
 struct InfiniteFileSystem;
 
 impl liquid::partials::PartialSource for InfiniteFileSystem {